Denim is going upscale at Topshop. In August, the retailer will launch a premium denim area at its Oxford Circus flagship in London. The space, housed within Topshop’s vast denim section in the store, will carry brands including Dittos, Radcliffe Denim, Sass & Bide, J Brand and My Lovely Jean. In addition, the retailer will also launch limited edition denim capsule collections designed with brands including Sass & Bide, Dittos and J Brand during the fall season. And during London Fashion Week, Topshop will open a pop-up denim clinic at its Oxford Circus store, with designers on hand to advise customers about denim fits and styles